Home > Dual Sport Parts > Honda CRF450L Parts > CRF450X FMF Q4 Muffler Fitment: 2019+ Honda CRF450X 2019+ Honda CRF450L/RL ** ** For this Q4 muffler to fit a CRF450L/RL, you need to fit it with an FMF MegaBomb header pipe. Additionally, when installing this exhaust on a CRF450L/RL, you MUST tune the bike appropriately with something like a Vortex ECU. See our CRF450L/RL Exhaust / ECU Bundle for details on how to save money by purchasing an Exhaust and ECU together. Standard Features: Constructed from aircraft grade aluminum and high strength stainless steel Removable USFS spark arrestor included Pounds lighter than stock (total weight 5.8 lbs) Quietest aftermarket muffler available for your CRF! Includes mid pipe insert if you want to use with the smaller stock header pipe (fits 450X header only) Meets USFS and FIM World Enduro sound regulations Part # 041578 ** IN STOCK - Usually leaves our warehouse in 1-2 business days. NOTE: We cannot ship this product to California, Alaska, Hawaii or Canada. If you are from any of these locations and order one, it will have to be removed from the order. CRF450X FMF Q4 Muffler 041578Retail Price: $449.99Our Price: $425.95 WARNING! - Motor sports can be extremely dangerous, injury or death can occur. No warranty is made or implied regarding any product sold by Devo Tech, Inc. / SoloRacer.com to protect users from injury or death. The user assumes all risks. Please read the rest of our Legal Disclaimer before ordering. Our on-line store is up and running 24 hours a day, 7 days a week. We use Yahoo! Secure Servers for all transactions so you can shop with complete confidence. If you are uncomfortable ordering online, call or email us for more ordering options. SRmoto.com |  Corbeau USA ©Copyright 2002-2025 by Devo Tech, Inc.